HTTP 203 Non-Authoritative Information vs 523 Origin Is Unreachable
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 523 (Origin Is Unreachable) is a 5xx Server Error response. 203 indicates that the response payload has been modified by a transforming proxy from the origin server's 200 response. In contrast, 523 means that cloudflare-specific. Cloudflare could not reach the origin server (DNS resolution failed or no route).
Descrição
The response payload has been modified by a transforming proxy from the origin server's 200 response.
Quando você o vê
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
Como corrigir
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Descrição
Cloudflare-specific. Cloudflare could not reach the origin server (DNS resolution failed or no route).
Quando você o vê
When Cloudflare's DNS for the origin fails to resolve.
Como corrigir
Verify DNS records in Cloudflare dashboard. Check origin server's IP address.
Diferenças principais
203 is a 2xx Success response, while 523 is a 5xx Server Error response.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
HTTP 523: Cloudflare-specific. Cloudflare could not reach the origin server (DNS resolution failed or no route).
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 523 when when Cloudflare's DNS for the origin fails to resolve.
Quando usar qual
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 523 (Origin Is Unreachable): Verify DNS records in Cloudflare dashboard. Check origin server's IP address.